diff --git a/app/terraform/proxy/__init__.py b/app/terraform/proxy/__init__.py
index 094fda2..1d27ff8 100644
--- a/app/terraform/proxy/__init__.py
+++ b/app/terraform/proxy/__init__.py
@@ -174,7 +174,7 @@ class ProxyAutomation(TerraformAutomation):
             proxy_pass https://{{ origin.domain_name }}/;
             subs_filter_types text/html text/css text/xml;
             subs_filter https://{{ origin.domain_name }}/ /;
-            subs_filter "\"https://{{ origin.domain_name }}\"" /;
+            subs_filter "\\\"https://{{ origin.domain_name }}\\\"" /;
           }
           ssl_certificate /etc/ssl/smart_proxy.crt;
           ssl_certificate_key /etc/ssl/private/smart_proxy.key;